A friend of mine has a glass eye. When he's drunk he sometimes takes it out and puts it on the table. He's even popped it into someone else's drink. It's quite a disturbing party trick.
I was having a beer in Paddington on the day of an England game in the 80s. A group of Wolves fans were there and one of them had a glass eye. He took it out and shoved it between his balls and arse, and proceeded to dance over a pint of lager, and drop it into the glass. He then picked his eye out of the glass, wipe it on his shirt and pop it back in. ****ing hilarious.
Of course you can. It's total BS that you can only have one, or soulmates or anything like that. I would say it's probably not wise to be in love with more than one at a time though.
That has happened at least once in humans. Lots of snakes and lizards have two penises, or forked penises.
I did too. Of course you can be in love with two people. It's not unusual for people in affairs to still love their spouse and their bit on the side. I don't think polygamy is always about extra sex or producing offspring either. Not really a wise situation to get oneself into though, I doubt it's possible (or at least easy) to keep everyone happy.
I remember reading an article once a few years ago but I can't find it again. Something about the % of people who fall in love with someone else whilst married. (But don't necessarily act on it) I don't remember what it said that % was but I recall it was surprisingly high. No idea how accurate report was though. I do recall though that it said the average time spent "in love" with a third party was three years... That's a lot of time in a marriage to be loving someone else! It also didn't say if person was still in love with their spouse at the time of falling for someone else.